P-616 - Income inequality, death, and depression: an ecological analysis of US states - 13/06/12
Résumé |
Introduction |
Income inequality has been shown to be associated with mortality across US states, i.e. more unequal states have higher mortality. Recent survey results have also shown a significant variation on depression prevalence across the US state, and depression has been shown to increase morbidity and mortality.
Objectives |
To measure the effects of income inequality on mortality taking in account depression prevalence.
Aims |
To test whether the relation between income inequality and mortality found among US states is due to different rates of depression.
Methods |
Data comes from the US Census Bureau (income inequality) and from the Center for Disease Control (mortality and depression prevalence). Simple and multiple linear regression models were estimated.
Results |
Income inequality is positively associated with mortality across US states (p=.039). Depression prevalence was strongly associated with mortality across US states (p<.001). In a multiple regression model including income inequality and depression prevalence, the effect of income inequality is no longer statistically significant (p=.79) while depression prevalence remains significant (p<.001).
Conclusions |
Depression prevalence accounts for the inequality effect and is a powerful predictor of mortality variation across US states.
Le texte complet de cet article est disponible en PDF.Vol 27 - N° S1
P. 1 - 2012 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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